Cannabis (or marihuana) is one of the most widely consumed psychoactive substances in the world. According to the United Nations World Drug Report, 183 million people, or 3.8% of the world’s population, used cannabis in 2014. Its cultivation was also reported by 129 countries. Cannabis is subject to the United Nations System for International Control of Narcotic Drugs and Psychotropic Substances (hereafter “drugs”) and is the most widely consumed of all the drugs. According to that control system, cannabis is among the substances with the strictest legal status; they are the most prohibited, supposedly because of the harm they cause and their lack of medical usefulness.
Paraguay is the principal producer of cannabis in South America. Despite its importance as a supplier of cannabis in South America, there has been a surprising absence of serious studies of its impact on its own society, and on the play of offer and demand in neighbouring countries.